| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a concrete roof tile good in usage and cuttability, having a massive feeling, improving the durability and thermal insulation property of the sheathing roof board and capable of being easily produced in larger size. SOLUTION: This concrete roof tile is produced by press-forming a hydraulic binder composition contg., by absolute volume, 5-40% sand and 0.5-1.5% fiber. The thickness is adjusted to 7-11 mm, and an alkali-resistant fiber or a Vinylon (R) fiber is used as the fiber.</p> |
